Model:ATMEGA640-16CU BRAND:Microchip description:IC MCU 8BIT 64KB FLASH 100CBGA pack:tray SERIES:AVR? ATmega status:in stock Core processor:AVR Core specifications:8-bit Speed:16MHz Peripherals:Undervoltage detection/reset,POR,PWM,WDT I/O number:86 Program storage capacity:64KB(32K x 16) Program memory type:Flash memory EEPROM capacity:4K x 8 RAM size:8K x 8 Voltage - powered by:2.7V ~ 5.5V Data converter:A/D 16x10b Oscillator type:bosom Operating temperature:-40°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:100-TFBGA Supplier device packaging:100-CBGA(9x9)